Muscle, Skeletal, And Skin Systems

Question 0

What protects the skin from burning?

Answer 0

Melanin

Question 1

Skin forms a _______________that keeps disease causing microorganisms and harmful substances outside the body.

Answer 1

Barrier

Question 2

Which part of the skin contains the nerves and blood vessels?

Answer 2

Dermis

Question 3

Washing your face gets rid of dirt

and harmful bacteria such as…

Answer 3

Acne

Question 4

List the five major functions of the skeleton.

Answer 4

Provides shape and support.
Enables you to move.
Protects your organs.
Produces blood cells.
Stores minerals and other materials.

Question 5

The 26 small bones that make up the backbone are the ______________.

Answer 5

Vertebrae.

Question 6

The long bones of the arms and legs make ____________.

Answer 6

Blood.

Question 7

Circle the letter of bones that are held together but immovable joints.
A. Knee
B. Ankle
C. Skull
D. Wrist

Answer 7

C. Skull

Question 8

What kind of Motion does the hinge joint have?

Answer 8

Allows forward and backward motion.

Question 9

Where is the hinge joint found in your body?

Answer 9

Found in the knee and elbow.

Question 10

What kind of motion does the ball and socket joint have?

Answer 10

Allows a free swinging motion.

Question 11

Where is the ball and socket joint found in your body?

Answer 11

Found in your shoulders and hips.

Question 12

What kind of motion does the pivot joint have?

Answer 12

Allows one bone to rotate around another.

Question 13

Where is the pivot joint found in your body?

Answer 13

Found in your neck.

Question 14

What kind of motion does the gliding joint have?

Answer 14

Allows one bone to slide over another.

Question 15

Where is the gliding joint found in your body?

Answer 15

Found in your ankles and wrists.

Question 16

Where is the compact bone found?

Answer 16

Beneath the outer membrane.

Question 17

What is marrow?

Answer 17

Soft connective tissue in the spaces in bone.

Question 18

Much of an infants skeleton is..?

Answer 18

Cartilage

Question 19

Why is exercise important for muscles?

Answer 19

It helps maintain strength and flexibility.

Question 20

Is skeletal muscle striated it or not?

Answer 20

Striated

Question 21

Is smooth muscle striated or not?

Answer 21

Not

Question 22

Is cardiac muscle striated or not?

Answer 22

Striated

Question 23

Where is cardiac muscle found?

Answer 23

Only in the heart.

Question 24

A strong connective tissue that attaches muscles to bone is a __________.

Answer 24

Tendon

Question 25

Why must skeletal muscles work in pairs to move a bone?

Answer 25

Muscle cells can only contract, not extend.

Question 26

To bend the elbow, the biceps muscle ____________ and the triceps muscle returns to its ______________________.

Answer 26

Contract | Original length

Question 27

List the levels of organization in the human body in order from smallest to largest.

Answer 27

Cells, tissues, organs, organ systems.

Question 28

The control center that directs the cells activities and contains information that determines the cells form and function is the ____________.

Answer 28

Nucleus

Question 29

Muscle tissue can ____________ and _____________.

Answer 29

Contract | Shorten

Question 30

Tissues perform _______ complex jobs organs.

Answer 30

Less

Question 31

The ________________ layer of skin is the epidermis.

Answer 31

Outermost

Question 32

To bend a joint one muscle ____________ while the other muscle returns to its regular length.

Answer 32

Contracts

Question 33

Organ system contain ______, organs, and tissues.

Answer 33

Cells

Question 34

What is the function of the nervous system?

Answer 34

Carries messages to and from the brain to other parts of the body.

Question 35

What is an organ system?

Answer 35

A group of organs that work together to perform a major function.

Question 36

The process by which an organism's internal environment is get stable and spite of changes in the external environment is called _____________.

Answer 36

Homeostasis

Question 37

How does your body maintain a constant temperature on a hot day?

Answer 37

Allows access heat to escape the body by sweating.

Question 38

Describe the levels of organization.

Answer 38

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Question 39

What are three bones and what organ they protect.

Answer 39

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